20672748

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{1987}}^1$

素因数の和:2031

約数の個数: 54

約数和(自身を含む): 55538756

約数和(自身を除く): 34866008

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 289, 306, 578, 612, 867, 1156, 1734, 1987, 2601, 3468, 3974, 5202, 5961, 7948, 10404, 11922, 17883, 23844, 33779, 35766, 67558, 71532, 101337, 135116, 202674, 304011, 405348, 574243, 608022, 1148486, 1216044, 1722729, 2296972, 3445458, 5168187, 6890916, 10336374, 20672748]

約数ペア:

[(1, 20672748), (2, 10336374), (3, 6890916), (4, 5168187), (6, 3445458), (9, 2296972), (12, 1722729), (17, 1216044), (18, 1148486), (34, 608022), (36, 574243), (51, 405348), (68, 304011), (102, 202674), (153, 135116), (204, 101337), (289, 71532), (306, 67558), (578, 35766), (612, 33779), (867, 23844), (1156, 17883), (1734, 11922), (1987, 10404), (2601, 7948), (3468, 5961), (3974, 5202)]